Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...


What is virtual constructors/destructors?

Answers were Sorted based on User's Feedback



What is virtual constructors/destructors?..

Answer / nk

There is nothing like virtual constructors but we can have
virtual destructors so that the destructor of the correct
object is called.
Ex.

Base *bptr = new derived()

delete bptr; then the destructor of the derived objetc is
called when the base destructor is marked as virtual.

else destructore of base class is called and may lead to
memory leak if we have allocated any new memory.

Is This Answer Correct ?    18 Yes 1 No

What is virtual constructors/destructors?..

Answer / debasish

there is no virtual constructor..coz..virtual thing is in
run time n constructor ic compile time thing.

Is This Answer Correct ?    15 Yes 3 No

What is virtual constructors/destructors?..

Answer / syed abdul gaffur.

CONSTRUCTOR:

Constructors cannot be virtual. Declaring a constructor as a virtual function is a syntax error.

DISTRUCTOR :

If an object (with a non-virtual destructor) is destroyed explicitly by applying the delete operator to a base-class pointer to the object, the base-class destructor function (matching the pointer type) is called on the object

Is This Answer Correct ?    7 Yes 0 No

What is virtual constructors/destructors?..

Answer / khadeer.k

virtual constructors are used when we need to avoid the
copy same. desructor frees the memory with a ~(tilde) symbol

Is This Answer Correct ?    8 Yes 9 No

Post New Answer

More OOPS Interview Questions

Write a program to compute for numeric grades for a course. The course records are in a file that will serve as the input file. The input file is in exactly the following format: Each line contains a student's first name, then one space, then ten quiz scores all on one line. The quiz scores are in whole number and are separated by one space. Your program will take it input from this file and sends it output to a second file. The data in the output file will be exactly the same as the data in the input file except that there will be one additional number (of type double) at the end of each line. This number will be the average of the student's ten quiz scores. Use at least one function that has file streams as all or some of its arguments.

0 Answers  


You have one base class virtual function how will call that function from derived class?

4 Answers  


What is cohesion in oop?

0 Answers  


In multilevel inheritance constructors will be executed from the .... class to ... class

2 Answers   ABCO, TCS,


difference between overloading and overridding

11 Answers  


Following are the class specifications: class {int a}; class {int b}; Using friend funtion,calculate the max of two objects and display it.

0 Answers  


Is following functions are said to be overloaded? int add(int a,int b) char *add(int a,int b)

4 Answers  


what is namespace? what are the uses of namespace?

1 Answers  


Get me an image implementation program.

0 Answers  


What is the use of unnamed namespaces in OOPS? The only advantage I know is that they dont need the scope resolution operator while accessing them. I want to know some other advantages of unnamed namespaces...

2 Answers  


who is the father of OPPS

4 Answers   Infosys, TCS,


program for insertion ,deletion,sorting in double link list

0 Answers  


Categories